MF question, strange things...

I start making mf on andy and mephy with 50-150 mf and i find a lot of good things (bk's, zaka, mara, and much much more...), and every run each of them drop at least 1-2 nice unique that i make use or sell for pul or something.
Now i have over 500 mf, i dont really remember exact how much but anyway about 500-600 mf and i cant find anything... Almost the same drop everytime... just some yellow and blue items, exception make unique some times but always just craps till lvl 30.
Is this any bug about mf? Or any particular setup?
What happens with drop?
Strange ha?

the point is that drops are still sheer luck!
when you're lucky you can find mara 30 with 0 mf on one day, then switch to 600 mf and find nothing in a whole week...
just keep on mf-ing! and good stuff will come eventually...

When quoting MF % tables, always note the assumptions being used. In the above table 100% mf is taken to be the natural amount of mf% on any character. Putting on a shako takes you to 150% mf and 141% effective unique mf. Most calculators do not use this form. Most assume characters start with 0% mf. Putting on a shako would give you 50% mf and 41% effective unique mf.